489 lines
12 KiB
Diff
489 lines
12 KiB
Diff
Fix resolving of variables at locations lists in prelinked libs (BZ 466901).
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Index: gdb-6.8.50.20081128/gdb/dwarf2loc.c
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===================================================================
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--- gdb-6.8.50.20081128.orig/gdb/dwarf2loc.c 2008-12-08 11:00:45.000000000 +0100
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+++ gdb-6.8.50.20081128/gdb/dwarf2loc.c 2008-12-08 18:02:49.000000000 +0100
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@@ -55,7 +55,9 @@ find_location_expression (struct dwarf2_
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CORE_ADDR low, high;
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gdb_byte *loc_ptr, *buf_end;
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int length;
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- struct objfile *objfile = dwarf2_per_cu_objfile (baton->per_cu);
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+ struct objfile *objfile1 = dwarf2_per_cu_objfile (baton->per_cu);
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+ struct objfile *objfile = objfile1->separate_debug_objfile
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+ ? objfile1->separate_debug_objfile : objfile1;
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struct gdbarch *gdbarch = get_objfile_arch (objfile);
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unsigned int addr_size = dwarf2_per_cu_addr_size (baton->per_cu);
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CORE_ADDR base_mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1));
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Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked.exp
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked.exp 2008-12-08 18:00:43.000000000 +0100
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@@ -0,0 +1,102 @@
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+# Copyright 2008 Free Software Foundation, Inc.
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+
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+# This program is free software; you can redistribute it and/or modify
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+# it under the terms of the GNU General Public License as published by
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+# the Free Software Foundation; either version 2 of the License, or
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+# (at your option) any later version.
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+#
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+# This program is distributed in the hope that it will be useful,
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+# but WITHOUT ANY WARRANTY; without even the implied warranty of
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+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+# GNU General Public License for more details.
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+#
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+# You should have received a copy of the GNU General Public License
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+# along with this program; if not, write to the Free Software
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+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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+
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+# Minimal DWARF-2 unit test
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+
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+# This test can only be run on i386/x86_64 targets which support DWARF-2.
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+# For now pick a sampling of likely targets.
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+if {(![istarget *-*-linux*]
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+ && ![istarget *-*-gnu*]
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+ && ![istarget *-*-elf*]
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+ && ![istarget *-*-openbsd*])
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+ || (![istarget "i?86-*-*"] && ![istarget "x86_64-*-*"])} {
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+ return 0
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+}
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+
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+set testfile "dw2-loclist-prelinked"
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+set srcfuncfile ${testfile}-func.S
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+set binsharedfuncfile ${objdir}/${subdir}/${testfile}.so
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+set srcmainfile ${testfile}-main.c
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+set binfile ${objdir}/${subdir}/${testfile}
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+
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+remote_exec build "rm -f ${binfile}"
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+
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+# get the value of gcc_compiled
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+if [get_compiler_info ${binfile}] {
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+ return -1
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+}
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+
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+# This test can only be run on gcc as we use additional_flags=FIXME
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+if {$gcc_compiled == 0} {
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+ return 0
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+}
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+
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+if { [gdb_compile_shlib "${srcdir}/${subdir}/${srcfuncfile}" "${binsharedfuncfile}" {debug additional_flags=-m32}] != "" } {
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+ untested "Couldn't compile test library"
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+ return -1
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+}
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+
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+# The new separate debug info file will be stored in the .debug subdirectory.
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+
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+if [gdb_gnu_strip_debug ${binsharedfuncfile}] {
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+ # check that you have a recent version of strip and objcopy installed
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+ unsupported "cannot produce separate debug info files"
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+ return -1
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+}
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+
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+if {[catch "system \"/usr/sbin/prelink -qNR --no-exec-shield ${binsharedfuncfile}\""] != 0} {
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+ # Maybe we don't have prelink.
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+ return -1
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+}
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+
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+if { [gdb_compile "${srcdir}/${subdir}/${srcmainfile}" \
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+ "${binfile}" executable [list debug additional_flags=-m32 shlib=${binsharedfuncfile}]] != "" } {
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+ return -1
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+}
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+
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+gdb_exit
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+gdb_start
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+gdb_reinitialize_dir $srcdir/$subdir
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+gdb_load ${binfile}
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+
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+gdb_run_cmd
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+
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+gdb_test "" "Program received signal SIGABRT, Aborted..*" "Enter abort()"
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+
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+# Incorrect:
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+# #0 0x00110430 in __kernel_vsyscall ()
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+# No symbol table info available.
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+# #1 0x003d44c0 in raise () from /lib/libc.so.6
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+# No symbol table info available.
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+# #2 0x003d5e88 in abort () from /lib/libc.so.6
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+# No symbol table info available.
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+# #3 0x44f10437 in func () at dw2-loclist-prelinked.c:8
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+# i = Could not find the frame base for "func".
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+
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+# Correct:
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+# #0 0x00110430 in __kernel_vsyscall ()
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+# No symbol table info available.
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+# #1 0x003d44c0 in raise () from /lib/libc.so.6
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+# No symbol table info available.
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+# #2 0x003d5e88 in abort () from /lib/libc.so.6
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+# No symbol table info available.
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+# #3 0x4ae36437 in func () at dw2-loclist-prelinked.c:8
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+# i = 3827288
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+# #4 0x0804851a in main () at ../../../gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked-main.c:24
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+# No locals.
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+
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+# `abort' can get expressed as `*__GI_abort'.
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+gdb_test "bt full" "in \[^ \]*abort \\(.*in func \\(.*\ti = -?\[0-9\].*in main \\(.*" "Backtrace after abort()"
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Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked-main.c
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked-main.c 2008-12-08 18:00:43.000000000 +0100
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@@ -0,0 +1,26 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2008 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 3 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
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+
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+/* dw2-loclist-prelinked-func.S */
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+extern void func (void);
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+
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+int
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+main (void)
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+{
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+ func ();
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+ return 0;
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+}
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Index: gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked-func.S
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===================================================================
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--- /dev/null 1970-01-01 00:00:00.000000000 +0000
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+++ gdb-6.8.50.20081128/gdb/testsuite/gdb.dwarf2/dw2-loclist-prelinked-func.S 2008-12-08 18:00:43.000000000 +0100
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@@ -0,0 +1,328 @@
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+/* This testcase is part of GDB, the GNU debugger.
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+
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+ Copyright 2008 Free Software Foundation, Inc.
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+
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+ This program is free software; you can redistribute it and/or modify
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+ it under the terms of the GNU General Public License as published by
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+ the Free Software Foundation; either version 3 of the License, or
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+ (at your option) any later version.
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+
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+ This program is distributed in the hope that it will be useful,
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ GNU General Public License for more details.
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+
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+ You should have received a copy of the GNU General Public License
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+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
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+
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+/*
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+#include <stdlib.h>
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+
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+void
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+func (void)
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+{
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+ int i;
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+
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+ abort ();
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+}
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+*/
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+ .file "dw2-loclist-prelinked.c"
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+ .section .debug_abbrev,"",@progbits
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+.Ldebug_abbrev0:
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+ .section .debug_info,"",@progbits
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+.Ldebug_info0:
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+ .section .debug_line,"",@progbits
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+.Ldebug_line0:
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+ .text
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+.Ltext0:
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+.globl func
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+ .type func, @function
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+func:
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+.LFB2:
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+ .file 1 "dw2-loclist-prelinked.c"
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+ .loc 1 5 0
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+ pushl %ebp
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+.LCFI0:
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+ movl %esp, %ebp
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+.LCFI1:
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+ subl $24, %esp
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+.LCFI2:
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+ .loc 1 8 0
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+ call abort
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+.LFE2:
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+ .size func, .-func
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+ .section .debug_frame,"",@progbits
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+.Lframe0:
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+ .long .LECIE0-.LSCIE0
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+.LSCIE0:
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+ .long 0xffffffff
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+ .byte 0x1
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+ .string ""
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+ .uleb128 0x1
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+ .sleb128 -4
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+ .byte 0x8
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+ .byte 0xc
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+ .uleb128 0x4
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+ .uleb128 0x4
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+ .byte 0x88
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+ .uleb128 0x1
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+ .align 4
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+.LECIE0:
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+.LSFDE0:
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+ .long .LEFDE0-.LASFDE0
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+.LASFDE0:
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+ .long .Lframe0
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+ .long .LFB2
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+ .long .LFE2-.LFB2
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+ .byte 0x4
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+ .long .LCFI0-.LFB2
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+ .byte 0xe
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+ .uleb128 0x8
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+ .byte 0x85
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+ .uleb128 0x2
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+ .byte 0x4
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+ .long .LCFI1-.LCFI0
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+ .byte 0xd
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+ .uleb128 0x5
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+ .align 4
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+.LEFDE0:
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+ .text
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+.Letext0:
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+ .section .debug_loc,"",@progbits
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+.Ldebug_loc0:
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+.LLST0:
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+ .long .LFB2-.Ltext0
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+ .long .LCFI0-.Ltext0
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+ .value 0x2
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+ .byte 0x74
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+ .sleb128 4
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+ .long .LCFI0-.Ltext0
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+ .long .LCFI1-.Ltext0
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+ .value 0x2
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+ .byte 0x74
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+ .sleb128 8
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+ .long .LCFI1-.Ltext0
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+ .long .LFE2-.Ltext0
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+ .value 0x2
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+ .byte 0x75
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+ .sleb128 8
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+ .long 0x0
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+ .long 0x0
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+ .section .debug_info
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+ .long 0x94
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+ .value 0x2
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+ .long .Ldebug_abbrev0
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+ .byte 0x4
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+ .uleb128 0x1
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+ .long .LASF10
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+ .byte 0x1
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+ .long .LASF11
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+ .long .LASF12
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+ .long .Ltext0
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+ .long .Letext0
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+ .long .Ldebug_line0
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+ .uleb128 0x2
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+ .byte 0x4
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+ .byte 0x7
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+ .long .LASF0
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+ .uleb128 0x3
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+ .byte 0x4
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+ .byte 0x5
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+ .string "int"
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+ .uleb128 0x2
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+ .byte 0x4
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+ .byte 0x5
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+ .long .LASF1
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+ .uleb128 0x2
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+ .byte 0x1
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+ .byte 0x8
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+ .long .LASF2
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+ .uleb128 0x2
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+ .byte 0x2
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+ .byte 0x7
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+ .long .LASF3
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+ .uleb128 0x2
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+ .byte 0x4
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+ .byte 0x7
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+ .long .LASF4
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+ .uleb128 0x2
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+ .byte 0x1
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+ .byte 0x6
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+ .long .LASF5
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+ .uleb128 0x2
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+ .byte 0x2
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+ .byte 0x5
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+ .long .LASF6
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+ .uleb128 0x2
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+ .byte 0x8
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+ .byte 0x5
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+ .long .LASF7
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+ .uleb128 0x2
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+ .byte 0x8
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+ .byte 0x7
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+ .long .LASF8
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+ .uleb128 0x4
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+ .byte 0x4
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+ .byte 0x7
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+ .uleb128 0x2
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+ .byte 0x1
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+ .byte 0x6
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+ .long .LASF9
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+ .uleb128 0x5
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+ .byte 0x1
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+ .long .LASF13
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+ .byte 0x1
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+ .byte 0x5
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+ .byte 0x1
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+ .long .LFB2
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+ .long .LFE2
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+ .long .LLST0
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+ .uleb128 0x6
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+ .string "i"
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+ .byte 0x1
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+ .byte 0x6
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+ .long 0x2c
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+ .byte 0x2
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+ .byte 0x91
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+ .sleb128 -12
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+ .byte 0x0
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+ .byte 0x0
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+ .section .debug_abbrev
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+ .uleb128 0x1
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+ .uleb128 0x11
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+ .byte 0x1
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+ .uleb128 0x25
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+ .uleb128 0xe
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+ .uleb128 0x13
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+ .uleb128 0xb
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+ .uleb128 0x3
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+ .uleb128 0xe
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+ .uleb128 0x1b
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+ .uleb128 0xe
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+ .uleb128 0x11
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+ .uleb128 0x1
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+ .uleb128 0x12
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+ .uleb128 0x1
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+ .uleb128 0x10
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+ .uleb128 0x6
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+ .byte 0x0
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+ .byte 0x0
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+ .uleb128 0x2
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+ .uleb128 0x24
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+ .byte 0x0
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+ .uleb128 0xb
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+ .uleb128 0xb
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+ .uleb128 0x3e
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+ .uleb128 0xb
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+ .uleb128 0x3
|
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+ .uleb128 0xe
|
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+ .byte 0x0
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+ .byte 0x0
|
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+ .uleb128 0x3
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+ .uleb128 0x24
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+ .byte 0x0
|
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+ .uleb128 0xb
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+ .uleb128 0xb
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+ .uleb128 0x3e
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+ .uleb128 0xb
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+ .uleb128 0x3
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+ .uleb128 0x8
|
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+ .byte 0x0
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+ .byte 0x0
|
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+ .uleb128 0x4
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+ .uleb128 0x24
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+ .byte 0x0
|
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+ .uleb128 0xb
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+ .uleb128 0xb
|
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+ .uleb128 0x3e
|
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+ .uleb128 0xb
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+ .byte 0x0
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+ .byte 0x0
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+ .uleb128 0x5
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+ .uleb128 0x2e
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+ .byte 0x1
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+ .uleb128 0x3f
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+ .uleb128 0xc
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+ .uleb128 0x3
|
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+ .uleb128 0xe
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+ .uleb128 0x3a
|
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+ .uleb128 0xb
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+ .uleb128 0x3b
|
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+ .uleb128 0xb
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+ .uleb128 0x27
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+ .uleb128 0xc
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+ .uleb128 0x11
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+ .uleb128 0x1
|
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+ .uleb128 0x12
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+ .uleb128 0x1
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+ .uleb128 0x40
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+ .uleb128 0x6
|
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+ .byte 0x0
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+ .byte 0x0
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+ .uleb128 0x6
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+ .uleb128 0x34
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+ .byte 0x0
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+ .uleb128 0x3
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+ .uleb128 0x8
|
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+ .uleb128 0x3a
|
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+ .uleb128 0xb
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+ .uleb128 0x3b
|
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+ .uleb128 0xb
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+ .uleb128 0x49
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+ .uleb128 0x13
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+ .uleb128 0x2
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+ .uleb128 0xa
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+ .byte 0x0
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+ .byte 0x0
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+ .byte 0x0
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+ .section .debug_pubnames,"",@progbits
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+ .long 0x17
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+ .value 0x2
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+ .long .Ldebug_info0
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+ .long 0x98
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+ .long 0x75
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+ .string "func"
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+ .long 0x0
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+ .section .debug_aranges,"",@progbits
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+ .long 0x1c
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+ .value 0x2
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+ .long .Ldebug_info0
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+ .byte 0x4
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+ .byte 0x0
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+ .value 0x0
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+ .value 0x0
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+ .long .Ltext0
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+ .long .Letext0-.Ltext0
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+ .long 0x0
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+ .long 0x0
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+ .section .debug_str,"MS",@progbits,1
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+.LASF7:
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+ .string "long long int"
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+.LASF0:
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+ .string "unsigned int"
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+.LASF11:
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+ .string "dw2-loclist-prelinked.c"
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+.LASF12:
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+ .string "gdb-6.8/gdb/testsuite/gdb.dwarf2"
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+.LASF4:
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+ .string "long unsigned int"
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+.LASF8:
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+ .string "long long unsigned int"
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+.LASF2:
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+ .string "unsigned char"
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+.LASF9:
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+ .string "char"
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+.LASF1:
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+ .string "long int"
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+.LASF3:
|
|
+ .string "short unsigned int"
|
|
+.LASF5:
|
|
+ .string "signed char"
|
|
+.LASF10:
|
|
+ .string "GNU C 4.3.2 20081007 (Red Hat 4.3.2-6)"
|
|
+.LASF13:
|
|
+ .string "func"
|
|
+.LASF6:
|
|
+ .string "short int"
|
|
+ .ident "GCC: (GNU) 4.3.2 20081007 (Red Hat 4.3.2-6)"
|
|
+ .section .note.GNU-stack,"",@progbits
|